EPCOS B57235 User Manual
查询B57235S0100M000供应商
B57235Inrush Current Limiters
S235
Applications
■ Switch-mode power supplies
Features
■ Useable in series connections up to 265 V
■ Coated thermistor disk
■ Kinked leads of tinned copper wire
■ Wide resistance range
■ Small space requirement
■ Cost-effective
■ UL approval (E69802)
rms
Options
Resistance tolerance < 20 % available on request
Delivery mode
Bulk (standard),
cardboard tape, reeled or in Ammo pack
Climatic category (IEC 60068-1)
Max. power at 25
°C P
max
Resistance tolerance ∆RN/R
Rated temperature T
B value tolerance ∆B/B
Dissipation factor (in air)
Thermal cooling time constant (in air) τ
Heat capacity C
N
δ
th
c
th
ø9,5 max.
ø0,6
5
6 max.
TNT0411-B
14 max.
136
_
Dimensions in mm
Approx. weight 0,8 g
55/170/56
1,8
N
± 20 %
25
W
°C
± 3 %
approx. 9
approx. 60
approx. 540
mW/K
s
mJ/K
1)
R
25
Ω
I
max
(0 … 65 °C)
A
No. of
R/T characteristic
B
K
25/100
C
230 V
µF
1)
C
T
Parameters for
T
110 V
R(I)
µF
kn
1)
Ordering code
5,0 4,2 1202 2800 200 800 0,710 – 1,30 B57235S0509M000
6,0 4,0 1202 2800 200 800 0,757 – 1,30 B57235S0609M000
8,0 3,5 1203 2900 200 800 0,814 – 1,32 B57235S0809M000
10,0 3,0 1203 2900 200 800 0,879 – 1,32 B57235S0100M000
1) For details on the capacitance CT as well as on the parameters k and n refer to “Application Notes”, pages 40 –42.
130 05/02
Reliability data
Test Standard Test conditions
Storage in
dry heat
IEC
60068-2-2
Storage at upper
category temperature
T: 170
°C
t: 1000 h
Storage in damp
heat, steady state
IEC
60068-2-3
Temperature of air: 40
Relative humidity of air: 93 %
Duration: 21 days
Rapid temperature
cycling
IEC
60068-2-14
Lower test temperature: – 55
Upper test temperature: 170
Number of cycles: 10
Endurance I = I
max
t: 1000 h
Cyclic
endurance
, 1000 cycles
I = I
max
On-time = 1 min
Cooling time = 6 min
Transient
load
Capacitance = C
Number of cycles: 1000
B57235Inrush Current Limiters
S235
∆R
25/R25
Remarks
(typical)
< 10 % No visible
damage
°C
< 5 % No visible
damage
< 10 % No visible
°C
°C
damage
< 10 % No visible
damage
< 10 % No visible
damage
T
< 5 % No visible
damage
131 05/02
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